How can I get the error message if py::exec an incorrect statement?

[softempire]

Hi there,

Does anyone meet the issue before?
I want to get the output/error when exec some Python statement from a C++ program. And then display the message on the GUI. But I can't get the message if the python statement is incorrect like "jajslkjgkajljslkjglakj"

`int main(int argc, char *argv[])
{
py::scoped_interpreter guard{}; // start the interpreter and keep it alive

std::string msg;
{
    std::string stdOutErr =
        "import sys\n\

class CatchOutErr:\n
def init(self):\n
self.value = 'placeholder'\n
def write(self, txt):\n
self.value += txt\n
catchOutErr = CatchOutErr()\n
oldstdout = sys.stdout\n
sys.stdout = catchOutErr\n
oldstderr = sys.stderr\n
sys.stderr = catchOutErr\n
"; //this is python code to redirect stdouts/stderr

    py::exec(stdOutErr);
    pModule = PyImport_AddModule("__main__"); //create main module

    try
    {

//I can get the result message "placeholder123"
py::exec("print(123)");

//I can 't get the error message if run the following statement
//py::exec("error print(123)");
}
catch (...)
{
auto catcher = PyObject_GetAttrString(pModule, "catchOutErr"); //get our catchOutErr created above
auto output = PyObject_GetAttrString(catcher, "value"); //get the stdout and stderr from our catchOutErr object
auto strOutput = ObjectToString(output);
}

    auto catcher = PyObject_GetAttrString(pModule, "catchOutErr"); //get our catchOutErr created above  
    auto output = PyObject_GetAttrString(catcher, "value"); //get the stdout and stderr from our catchOutErr object
    auto strOutput = ObjectToString(output); 
    std::cout << strOutput;
}

return 0;

}`